Democrats on a congressional oversight panel are stepping up their investigation into how well states are regulating the disposal of oil and gas waste, citing continuing public concern about the potential environmental and health risks of hydraulic fracturing.

Pennsylvania’s regulators say they’re satisfied with the plan by the ride-sharing service Lyft to comply with conditions for a two-year license for experimental service to operate everywhere in the state except Philadelphia.

Pennsylvania state Treasurer Rob McCord said Friday that he is resigning immediately and is planning to plead guilty to federal charging that involve him telling two potential campaign contributors during last year’s gubernatorial primary that he could make it difficult for them to continue to do business with the state.

Gov.-elect Tom Wolf says he will name a top Maryland state official as secretary of the Pennsylvania Department of Human Services and a former northeastern Pennsylvania hospital official as his secretary of the Department of Health.